Load Specifications
Load data in caliber 7 x 57 with .284 | 140gr | Barnes X S bullet and 79 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 60, Alliant Reloder-17 and ReloadSwiss RS 70.
Important Notice: DO NOT go below Minimum Charge or above Maximum Charge. Since we have no control over the equipment and components used, any responsibility and liability for the results achieved is rejected.
Only powders/loads that match the current filter criteria are displayed: max pressure of a load ≤ 90% of max. standardized pressure, fill rate ≥ 80% and propellant combustion ≥ 95%. Use the sliders above the tables to adjust these thresholds.
Charge: Powder weight in grains. Start with the minimum load and work up carefully.
FR (Fill Rate): Case fill as a percentage. Values above 100% mean compressed loads.
MaxP / %: Maximum chamber pressure in bar and as a percentage of the standardized maximum for this caliber.
V(0): Muzzle velocity in feet per second (fps) at the standardized barrel length.
z (Powder Burn): Estimated propellant combustion percentage at bullet exit.
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You can find more information in our FAQ: How can I use the Personalized Load Calculator?
Max Load - Barrel Length: 23.62"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2495 | <<locked>> | 86% | 50,981 psi | 90% | 2687 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 51,184 psi | 90% | 2730 fps | 100% |
| Accurate 4064 | <<locked>> | 88% | 50,575 psi | 89% | 2726 fps | 100% |
| Accurate 4350 | <<locked>> | 96% | 48,733 psi | 86% | 2776 fps | 98.3% |
| ADI AR 2206H | <<locked>> | 84% | 50,140 psi | 89% | 2733 fps | 99.3% |
| ADI AR 2208 | <<locked>> | 90% | 50,995 psi | 90% | 2733 fps | 99% |
| ADI Benchmark 8208 | <<locked>> | 82% | 49,139 psi | 87% | 2687 fps | 99.7% |
| Alliant AR-Comp | <<locked>> | 82% | 49,458 psi | 87% | 2680 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 86% | 48,704 psi | 86% | 2825 fps | 98.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 50,763 psi | 90% | 2756 fps | 99.8% |
| Alliant Reloder-15 | <<locked>> | 86% | 48,501 psi | 86% | 2726 fps | 98.7% |
| Alliant Reloder-16 | <<locked>> | 98% | 49,879 psi | 88% | 2822 fps | 98.7% |
| Alliant Reloder-17 | <<locked>> | 94% | 50,807 psi | 90% | 2864 fps | 99.7% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 38,711 psi | 68% | 2621 fps | 97.5% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 42,670 psi | 75% | 2762 fps | 96.3% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 49,182 psi | 87% | 2736 fps | 98.4% |
| Bofors RP3 | <<locked>> | 88% | 48,283 psi | 85% | 2723 fps | 99.6% |
| Hodgdon Benchmark | <<locked>> | 82% | 50,952 psi | 90% | 2674 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 82% | 48,443 psi | 86% | 2720 fps | 99.9% |
| Hodgdon H380 | <<locked>> | 88% | 49,139 psi | 87% | 2726 fps | 97.8% |
| Hodgdon H414 | <<locked>> | 96% | 51,024 psi | 90% | 2815 fps | 96.1% |
| Hodgdon H4895 | <<locked>> | 84% | 50,647 psi | 90% | 2746 fps | 99.6% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 49,530 psi | 88% | 2762 fps | 99.5% |
| Hodgdon LEVERevolution | <<locked>> | 86% | 49,356 psi | 87% | 2772 fps | 99.7% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,752 psi | 63% | 1709 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 48,544 psi | 86% | 2697 fps | 99.4% |
| IMR 3031 | <<locked>> | 84% | 50,154 psi | 89% | 2736 fps | 100% |
| IMR 4064 | <<locked>> | 88% | 50,444 psi | 89% | 2713 fps | 99% |
| IMR 4166 Enduron | <<locked>> | 86% | 50,575 psi | 89% | 2687 fps | 95.8% |
| IMR 4831 | <<locked>> | 98% | 49,284 psi | 87% | 2769 fps | 98.4% |
| IMR 4895 | <<locked>> | 86% | 49,603 psi | 88% | 2756 fps | 99.3% |
| IMR 8208 XBR | <<locked>> | 82% | 49,139 psi | 87% | 2687 fps | 99.7% |
| Lovex D073.6 | <<locked>> | 84% | 49,966 psi | 88% | 2720 fps | 100% |
| Lovex S060 | <<locked>> | 84% | 49,937 psi | 88% | 2667 fps | 99.3% |
| Lovex S062 | <<locked>> | 88% | 50,662 psi | 90% | 2720 fps | 99.9% |
| Lovex S065 | <<locked>> | 94% | 49,835 psi | 88% | 2710 fps | 97.1% |
| Lovex S070 | <<locked>> | 96% | 50,531 psi | 89% | 2743 fps | 96.1% |
| Norma 201 | <<locked>> | 84% | 49,574 psi | 88% | 2690 fps | 99.8% |
| Norma 202 | <<locked>> | 84% | 49,516 psi | 88% | 2694 fps | 100% |
| Norma 203B | <<locked>> | 88% | 50,792 psi | 90% | 2766 fps | 99.4% |
| Norma URP | <<locked>> | 98% | 51,039 psi | 90% | 2815 fps | 98.5% |
| Ramshot Big Game | <<locked>> | 88% | 50,473 psi | 89% | 2782 fps | 99.2% |
| Ramshot Hunter | <<locked>> | 98% | 49,719 psi | 88% | 2799 fps | 96.7% |
| Ramshot TAC | <<locked>> | 82% | 49,342 psi | 87% | 2697 fps | 97.2% |
| Ramshot Wild Boar | <<locked>> | 82% | 48,704 psi | 86% | 2717 fps | 99.1% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,216 psi | 64% | 1749 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 49,327 psi | 87% | 2703 fps | 96.3% |
| ReloadSwiss RS 52 | <<locked>> | 84% | 47,979 psi | 85% | 2779 fps | 98.7% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 50,430 psi | 89% | 2864 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 96% | 47,732 psi | 84% | 2785 fps | 97.8% |
| ReloadSwiss RS 70 | <<locked>> | 98% | 51,126 psi | 90% | 2858 fps | 97.9% |
| Rottweil R 902 | <<locked>> | 86% | 50,183 psi | 89% | 2690 fps | 99.8% |
| Rottweil R 903 | <<locked>> | 90% | 48,414 psi | 86% | 2717 fps | 99.5% |
| Shooters World Long Rifle | <<locked>> | 94% | 49,835 psi | 88% | 2710 fps | 97.1% |
| Shooters World Match Rifle | <<locked>> | 84% | 49,966 psi | 88% | 2720 fps | 100% |
| Shooters World Precision | <<locked>> | 88% | 50,662 psi | 90% | 2720 fps | 99.9% |
| Shooters World SW4350 | <<locked>> | 96% | 50,531 psi | 89% | 2743 fps | 96.1% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 49,110 psi | 87% | 2766 fps | 99.1% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 51,053 psi | 90% | 2726 fps | 98% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 48,646 psi | 86% | 2707 fps | 99.1% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 50,763 psi | 90% | 2638 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 50,647 psi | 90% | 2638 fps | 100% |
| Somchem S335 | <<locked>> | 84% | 50,314 psi | 89% | 2638 fps | 100% |
| Somchem S341 | <<locked>> | 84% | 50,169 psi | 89% | 2717 fps | 99.2% |
| Somchem S355 | <<locked>> | 90% | 48,834 psi | 86% | 2717 fps | 99.4% |
| Somchem S365ᴾ | <<locked>> | 100% | 48,834 psi | 86% | 2818 fps | 100% |
| Vihtavuori N133 | <<locked>> | 84% | 50,792 psi | 90% | 2625 fps | 100% |
| Vihtavuori N135 | <<locked>> | 86% | 49,313 psi | 87% | 2664 fps | 100% |
| Vihtavuori N140 | <<locked>> | 86% | 49,748 psi | 88% | 2674 fps | 100% |
| Vihtavuori N150 | <<locked>> | 92% | 49,501 psi | 88% | 2694 fps | 99.9% |
| Vihtavuori N160 | <<locked>> | 96% | 50,082 psi | 89% | 2759 fps | 98.3% |
| Vihtavuori N530 | <<locked>> | 82% | 49,617 psi | 88% | 2690 fps | 99.8% |
| Vihtavuori N540 | <<locked>> | 86% | 48,254 psi | 85% | 2671 fps | 100% |
| Vihtavuori N550 | <<locked>> | 96% | 49,356 psi | 87% | 2762 fps | 98% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 41,887 psi | 74% | 2700 fps | 97.5% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 50,401 psi | 89% | 2740 fps | 99.7% |
| Winchester 748 | <<locked>> | 82% | 48,921 psi | 86% | 2733 fps | 100% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 34,809 psi | 62% | 2605 fps | 96.7% |
| Winchester StaBALL Match | <<locked>> | 84% | 48,240 psi | 85% | 2713 fps | 99.4% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 23.62"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2495 | <<locked>> | 80% | 42,453 psi | 75% | 2552 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 48,138 psi | 85% | 2680 fps | 100% |
| Accurate 4064 | <<locked>> | 80% | 40,089 psi | 71% | 2543 fps | 99.9% |
| Accurate 4350 | <<locked>> | 88% | 37,739 psi | 67% | 2566 fps | 95.5% |
| ADI AR 2206H | <<locked>> | 80% | 44,686 psi | 79% | 2635 fps | 98.5% |
| ADI AR 2208 | <<locked>> | 80% | 38,029 psi | 67% | 2484 fps | 96.2% |
| ADI Benchmark 8208 | <<locked>> | 80% | 46,499 psi | 82% | 2641 fps | 99.5% |
| Alliant AR-Comp | <<locked>> | 80% | 46,644 psi | 82% | 2638 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 40,292 psi | 71% | 2651 fps | 96.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 37,826 psi | 67% | 2513 fps | 97.8% |
| Alliant Reloder-15 | <<locked>> | 80% | 40,611 psi | 72% | 2572 fps | 97.2% |
| Alliant Reloder-16 | <<locked>> | 88% | 37,579 psi | 66% | 2566 fps | 95.4% |
| Alliant Reloder-17 | 41.1 gr | 80% | 32,880 psi | 58% | 2474 fps | 95.4% |
| Alliant Reloder-23 | <<locked>> | 94% | 32,648 psi | 58% | 2467 fps | 95.1% |
| Alliant Reloder-26 | <<locked>> | 98% | 40,074 psi | 71% | 2703 fps | 95.3% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 43,323 psi | 77% | 2628 fps | 97.3% |
| Bofors RP3 | <<locked>> | 80% | 37,855 psi | 67% | 2523 fps | 98% |
| Hodgdon Benchmark | <<locked>> | 80% | 48,269 psi | 85% | 2631 fps | 99.9% |
| Hodgdon BL-C2 | <<locked>> | 80% | 45,266 psi | 80% | 2664 fps | 99.7% |
| Hodgdon H380 | <<locked>> | 80% | 38,450 psi | 68% | 2516 fps | 95.1% |
| Hodgdon H414 | <<locked>> | 94% | 47,979 psi | 85% | 2759 fps | 95.4% |
| Hodgdon H4895 | <<locked>> | 80% | 45,078 psi | 80% | 2648 fps | 99% |
| Hodgdon Hybrid 100V | <<locked>> | 86% | 32,721 psi | 58% | 2415 fps | 95.5% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 40,698 psi | 72% | 2615 fps | 98.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,774 psi | 47% | 1526 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 42,888 psi | 76% | 2592 fps | 98.6% |
| IMR 3031 | <<locked>> | 80% | 44,309 psi | 78% | 2644 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 39,914 psi | 71% | 2520 fps | 97% |
| IMR 4166 Enduron | <<locked>> | 84% | 47,616 psi | 84% | 2635 fps | 95.1% |
| IMR 4831 | <<locked>> | 88% | 36,274 psi | 64% | 2516 fps | 95.1% |
| IMR 4895 | <<locked>> | 80% | 41,510 psi | 73% | 2602 fps | 98% |
| IMR 8208 XBR | <<locked>> | 80% | 46,499 psi | 82% | 2641 fps | 99.5% |
| Lovex D073.6 | <<locked>> | 80% | 44,135 psi | 78% | 2625 fps | 99.9% |
| Lovex S060 | <<locked>> | 80% | 44,556 psi | 79% | 2569 fps | 98.5% |
| Lovex S062 | <<locked>> | 80% | 40,248 psi | 71% | 2533 fps | 98.7% |
| Lovex S065 | <<locked>> | 88% | 41,945 psi | 74% | 2566 fps | 95.2% |
| Lovex S070 | <<locked>> | 94% | 47,587 psi | 84% | 2690 fps | 95.4% |
| Norma 201 | <<locked>> | 80% | 44,164 psi | 78% | 2595 fps | 99.3% |
| Norma 202 | <<locked>> | 80% | 43,990 psi | 78% | 2602 fps | 100% |
| Norma 203B | <<locked>> | 80% | 40,016 psi | 71% | 2562 fps | 97.6% |
| Norma URP | <<locked>> | 88% | 37,594 psi | 66% | 2556 fps | 95.3% |
| Ramshot Big Game | <<locked>> | 80% | 39,088 psi | 69% | 2566 fps | 97.1% |
| Ramshot Hunter | <<locked>> | 94% | 44,063 psi | 78% | 2694 fps | 95.2% |
| Ramshot TAC | <<locked>> | 80% | 46,224 psi | 82% | 2638 fps | 96.5% |
| Ramshot Wild Boar | <<locked>> | 80% | 45,629 psi | 81% | 2661 fps | 98.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,282 psi | 48% | 1565 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 86% | 46,456 psi | 82% | 2651 fps | 95.6% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 41,901 psi | 74% | 2664 fps | 97.5% |
| ReloadSwiss RS 60 | 41.1 gr | 80% | 34,795 psi | 62% | 2539 fps | 98.7% |
| ReloadSwiss RS 62 | <<locked>> | 90% | 39,697 psi | 70% | 2628 fps | 95.7% |
| ReloadSwiss RS 70 | 48 gr | 92% | 42,337 psi | 75% | 2684 fps | 95.6% |
| Rottweil R 902 | <<locked>> | 80% | 42,308 psi | 75% | 2549 fps | 99% |
| Rottweil R 903 | <<locked>> | 80% | 35,665 psi | 63% | 2467 fps | 97.1% |
| Shooters World Long Rifle | <<locked>> | 88% | 41,945 psi | 74% | 2566 fps | 95.2% |
| Shooters World Match Rifle | <<locked>> | 80% | 44,135 psi | 78% | 2625 fps | 99.9% |
| Shooters World Precision | <<locked>> | 80% | 40,248 psi | 71% | 2533 fps | 98.7% |
| Shooters World SW4350 | <<locked>> | 94% | 47,587 psi | 84% | 2690 fps | 95.4% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 35,969 psi | 64% | 2503 fps | 96.2% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 44,875 psi | 79% | 2618 fps | 96.8% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 42,859 psi | 76% | 2598 fps | 98.1% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 45,049 psi | 80% | 2543 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 37,623 psi | 67% | 2415 fps | 99.9% |
| Somchem S335 | <<locked>> | 80% | 44,889 psi | 79% | 2549 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 44,208 psi | 78% | 2615 fps | 98.3% |
| Somchem S355 | <<locked>> | 80% | 36,434 psi | 64% | 2470 fps | 97.1% |
| Somchem S365 | <<locked>> | 82% | 28,558 psi | 50% | 2359 fps | 95.2% |
| Vihtavuori N133 | <<locked>> | 80% | 45,150 psi | 80% | 2539 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 41,234 psi | 73% | 2533 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 41,568 psi | 73% | 2533 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 34,534 psi | 61% | 2408 fps | 97.9% |
| Vihtavuori N160 | <<locked>> | 88% | 39,276 psi | 69% | 2556 fps | 95.8% |
| Vihtavuori N530 | <<locked>> | 80% | 46,615 psi | 82% | 2638 fps | 99.6% |
| Vihtavuori N540 | <<locked>> | 80% | 40,292 psi | 71% | 2526 fps | 99.8% |
| Vihtavuori N550 | <<locked>> | 88% | 38,682 psi | 68% | 2559 fps | 95.4% |
| Vihtavuori N555 | <<locked>> | 94% | 34,983 psi | 62% | 2546 fps | 95.3% |
| Winchester 6.5 StaBALL | <<locked>> | 82% | 32,706 psi | 58% | 2379 fps | 95.6% |
| Winchester 748 | <<locked>> | 80% | 46,006 psi | 81% | 2684 fps | 99.8% |
| Winchester StaBALL HD | <<locked>> | 98% | 32,895 psi | 58% | 2546 fps | 95.5% |
| Winchester StaBALL Match | <<locked>> | 80% | 42,453 psi | 75% | 2608 fps | 98.6% |
Recommended = one of the top powders for this cartridge and bullet combination.
ᴾ possible press load - work up slowly to this load while watching for signs of excessive pressure.
This overview compares 79 powders for 7 x 57 loaded with the .284 | 140gr | Barnes X S. Alliant Reloder-17 delivers the highest muzzle velocity at 2,864 fps; across all powders the maximum-charge window runs from 1,709 fps to 2,864 fps. Alliant Reloder-23 gives the best case fill at 100 %, and 79 of the 79 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (390 MPa), the top charges use 62–90 %, leaving at least 10 % headroom. The 140.0 gr projectile in 0.284" calls for a 1:10.5 twist; slower twists will usually not stabilise this weight. Alliant Reloder-23, Alliant Reloder-26, Hodgdon Hybrid 100V reach 100 % fill or more at maximum charge, so these are compressed loads: they need a long drop tube to seat cleanly and react sensitively to the case capacity of your own brass lot. ReloadSwiss RS 60, Alliant Reloder-17, ReloadSwiss RS 70 rank at the top here: for 7 x 57 with the .284 | 140gr | Barnes X S they combine a high case fill with complete burn and sit in the upper velocity band. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.